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Monthly climate in Ronan, Montana, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Ronan features a humid continental climate (Dfb).Temperatures typically range between -6 °C (21 °F) and 20 °C (67 °F) through the year, but rarely can drop to -30 °C (-21 °F) or can rise to as high as 37 °C (98 °F).The average annual precipitation amounts to about 911 mm (35.9 inches) and receives 158 rainy days on the 1 mm (0.04 inches) threshold annually.Ronan enjoys an average of 2842 hours of sunshine throughout the year, and daylight varies from 8 hours 29 minutes to 15 hours 53 minutes per day.

Monthly average temperatures in Ronan, Montana, United States §

The warmest months in Ronan are June, July and August, with daily mean temperatures ranging from 14 to 20 °C (58 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -6 to -3 °C (21 - 27 °F) throughout the day. On average each year, Ronan experiences 43 days above 25 °C (77.0 °F) and 159 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ronan, Montana, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 7°C
(44°F)		 10°C
(50°F)		 17°C
(63°F)		 24°C
(75°F)		 29°C
(85°F)		 36°C
(97°F)		 36°C
(97°F)		 37°C
(98°F)		 31°C
(88°F)		 26°C
(78°F)		 15°C
(59°F)		 13°C
(55°F)
Mean maximum 5°C
(41°F)		 7°C
(45°F)		 12°C
(54°F)		 19°C
(66°F)		 25°C
(77°F)		 27°C
(81°F)		 33°C
(92°F)		 34°C
(93°F)		 29°C
(85°F)		 21°C
(70°F)		 12°C
(54°F)		 8°C
(47°F)
Average high -1°C
(30°F)		 -2°C
(28°F)		 4°C
(40°F)		 9°C
(48°F)		 15°C
(60°F)		 20°C
(68°F)		 27°C
(80°F)		 26°C
(79°F)		 19°C
(67°F)		 10°C
(51°F)		 4°C
(39°F)		 0°C
(32°F)
Daily mean -4°C
(25°F)		 -6°C
(21°F)		 -0°C
(32°F)		 4°C
(39°F)		 10°C
(49°F)		 14°C
(58°F)		 20°C
(67°F)		 19°C
(66°F)		 13°C
(56°F)		 5°C
(41°F)		 0°C
(33°F)		 -3°C
(27°F)
Average low -8°C
(18°F)		 -10°C
(14°F)		 -5°C
(24°F)		 -1°C
(30°F)		 3°C
(39°F)		 8°C
(46°F)		 11°C
(52°F)		 11°C
(52°F)		 7°C
(45°F)		 0°C
(33°F)		 -3°C
(27°F)		 -6°C
(22°F)
Mean minimum -18°C
(-1°F)		 -24°C
(-11°F)		 -15°C
(5°F)		 -8°C
(18°F)		 -2°C
(28°F)		 2°C
(35°F)		 5°C
(42°F)		 6°C
(42°F)		 0°C
(32°F)		 -9°C
(16°F)		 -12°C
(10°F)		 -15°C
(6°F)
Minimum -24°C
(-11°F)		 -30°C
(-21°F)		 -25°C
(-12°F)		 -11°C
(13°F)		 -5°C
(23°F)		 1°C
(34°F)		 3°C
(37°F)		 5°C
(41°F)		 -2°C
(29°F)		 -19°C
(-3°F)		 -15°C
(6°F)		 -20°C
(-3°F)

Compare climate in Ronan with other places

Compare temperature, precipitation, sunshine, UV index in Ronan, Montana, United States with other places around the world.

Monthly average precipitation in Ronan, Montana, United States §

Ronan usually has the most precipitation in February, October and November, with an average of 16 rainy days and 106 mm (4.2 inches) of precipitation per month.The driest months in Ronan are July, August and September. On average, 31 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ronan, Montana, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 69 (2.7) 120 (4.7) 71 (2.8) 95 (3.7) 90 (3.5) 80 (3.1) 18 (0.7) 29 (1.1) 47 (1.9) 96 (3.8) 103 (4.1) 93 (3.7)
Average precipitation days (≥ 1 mm) 13 20 17 18 15 12 4 4 8 13 16 18

Monthly sunshine hours in Ronan, Montana, United States §

The sunniest months in Ronan are June, July and August, when the sun shines an average of 11 hours 53 minutes a day.Least sunny months in Ronan: January, February and December receive an average of 3 hours 43 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ronan, Montana, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 99 131 231 254 304 339 406 348 270 212 136 107
Mean daily daylight hours 8h 55m 10h 16m 11h 57m 13h 40m 15h 8m 15h 53m 15h 28m 14h 9m 12h 29m 10h 47m 9h 16m 8h 29m

Solar UV radiation in Ronan, Montana, United States §

Ronan experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure.January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Ronan UV Index data.

Average daily maximum UV levels by month for Ronan, Montana, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 4 6 7 9 9 10 9 7 5 3 2